环境保护科学2025，Vol.51Issue(3)：41-49,9.DOI:10.16803/j.cnki.issn.1004-6216.202404055
生物合成施威特曼石催化类Fenton反应处理纺织印染废水
Treatment of textile dyeing wastewater by Fenton-like reaction catalyzed by biosynthesized schwertmannite
摘要
Abstract
The synthesis of schwertmannite mediated by A.ferrooxidans was used as a catalyst to investigate the effects of schwertmannite dosage,H2O2 concentration,initial pH,and reaction time on the treatment efficiency of textile dyeing wastewater by Fenton-like reaction.The treatment performance under the optimal catalytic conditions was compared with that of the traditional Fenton reaction,and the recycling performance of schwertmannite as a catalyst was also examined.The results showed that when the schwertmannite dosage was 8 g/L,the H2O2 concentration was 800 mg/L,the initial pH was 3.00,and the reaction time was 3 h,the removal rates of chroma,TOC,and COD in the wastewater reached 93.86%,89.75%,and 85.65%,respectively.Schwertmannite exhibited good removal efficiency for pollutants in textile dyeing wastewater,and 8 g/L schwertmannite could achieve removal rates of 82.19%,53.75%,and 41.99%for chroma,TOC,and COD,respectively.Under the optimal reaction conditions,the schwertmannite/H2O2 system showed comparable removal efficiencies for TOC and COD in the wastewater to the traditional homogeneous Fenton system,but the former was more favorable for chroma removal.After 6 cycles of reuse,the removal rates of chroma,TOC,and COD in the wastewater only decreased by 4.88%,6.90%,and 7.81%,respectively.关键词
施威特曼石/催化剂/类Fenton反应/纺织印染废水Key words
schwertmannite/catalyst/Fenton-like reaction/textile dyeing wastewater分类
资源环境引用本文复制引用
申祖武,揭翠,杨娇羽,罗浩伟,杨俊,宋永伟..生物合成施威特曼石催化类Fenton反应处理纺织印染废水[J].环境保护科学,2025,51(3):41-49,9.基金项目
国家自然科学基金资助项目(21906183) （21906183）
中南财经政法大学中央高校基本科研业务费专项资金(202451417) （202451417）
